Home / 780,048,231.42-1,076,534,660.78-427,692,323.48

Finding the Fourth Proportional to 780,048,231.42, 1,076,534,660.78 and 427,692,323.48

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Solution

The fourth proportional to 780,048,231.42, 1,076,534,660.78 and 427,692,323.48 is: 590,252,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,048,231.42 : 1,076,534,660.78 = 427,692,323.48 : x
  2. Step 2: Convert to fraction form
    780,048,231.42/1,076,534,660.78 = 427,692,323.48/x
  3. Step 3: Cross multiply
    780,048,231.42x = 1,076,534,660.78 × 427,692,323.48
  4. Step 4: Simplify right side
    780,048,231.42x = 460,425,610,368,230,784
  5. Step 5: Solve for x
    x = 460,425,610,368,230,784/780,048,231.42
  6. Step 6: Final answer
    x = 590,252,745.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.